Optical fano resonances in photonic crystal slabs near diffraction threshold anomalies
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- Akimov, A.B., Gippius, N.A. & Tikhodeev, S.G. Jetp Lett. (2011) 93: 427. doi:10.1134/S0021364011080029
Optical Fano resonances due to resonant eigenmodes in a layered periodically-modulated structure (photonic crystal slab) are investigated theoretically. The special attention is focused on the behavior of the resonances near a diffraction threshold. A new formulation of the resonant mode approximation for the optical scattering matrix near the diffraction threshold anomalies is proposed.